sqlcli: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/sqlcli - from package: sqlcli

You may install the required package with command yum install {package}
Error in other languages:
sqlcli: bevel nie gevind nie
sqlcli: comandă negăsită
sqlcli: comando não encontrado
sqlcli: commande introuvable
sqlcli: command not found
sqlcli: käsku ei ole
sqlcli: không tìm thấy lệnh
sqlcli: komanda nerasta
sqlcli: Kommando nicht gefunden.
sqlcli: kommandot finns inte
sqlcli: komut yok
sqlcli: nie znaleziono polecenia
sqlcli: níor aimsíodh an t-ordú
sqlcli: no se encontró la orden
sqlcli: no s'ha trobat l'ordre
sqlcli: opdracht niet gevonden
sqlcli: parancs nem található
sqlcli: perintah tidak ditemukan
sqlcli: príkaz nenájdený
sqlcli: příkaz nenalezen
sqlcli: команда не найдена
sqlcli: командата не е открита
sqlcli: 命令找不到
sqlcli: コマンドが見つかりません